<s>
The	O
Konami	B-Device
LaserScope	I-Device
is	O
a	O
head-mounted	O
light	B-Device
gun	I-Device
used	O
with	O
and	O
licensed	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
video	B-Device
game	I-Device
console	I-Device
.	O
</s>
<s>
It	O
was	O
originally	O
released	O
in	O
1991	O
in	O
Japan	O
for	O
the	O
Famicom	O
under	O
the	O
name	O
Gun	B-Application
Sight	I-Application
.	O
</s>
<s>
It	O
was	O
designed	O
for	O
the	O
game	O
Laser	B-Application
Invasion	I-Application
(	O
known	O
as	O
Gun	B-Application
Sight	I-Application
in	O
Japan	O
)	O
,	O
but	O
works	O
with	O
any	O
game	O
compatible	O
with	O
the	O
NES	B-Device
Zapper	I-Device
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
Laser	B-Application
Invasion	I-Application
came	O
with	O
a	O
coupon	O
for	O
a	O
$5	O
discount	O
for	O
the	O
LaserScope	B-Device
.	O
</s>
<s>
The	O
LaserScope	B-Device
is	O
powered	O
through	O
the	O
audio	O
port	O
of	O
the	O
NES	O
,	O
allowing	O
it	O
to	O
function	O
as	O
headphones	O
for	O
the	O
NES	O
.	O
</s>
<s>
The	O
LaserScope	B-Device
received	O
negative	O
reviews	O
for	O
its	O
poor	O
microphone	O
technology	O
;	O
users	O
complained	O
that	O
saying	O
anything	O
into	O
the	O
microphone	O
would	O
cause	O
the	O
LaserScope	B-Device
to	O
fire	O
,	O
including	O
background	O
noise	O
.	O
</s>
